Abstract
In the present study, captopril-loaded ordered mesoporous SBA-15 silica matrix were produced, functionalized, and characterized to obtain an efficient formulation of controlled drug delivery system. First, the starting SBA-15 materials are examined to verify that their synthesis has been successful considering the structural properties, using XRD, FTIR, and BET methods. Second, the influence of processing parameters of ordered mesoporous matrices for the loading and release of captopril was investigated. The release of captopril was controlled by tailoring the surface properties of the mesoporous silica via functionalization. The loading and release kinetics (in vitro in simulated gastric and intestinal fluids) showed that both of them were affected by the surface properties of the mesoporous silica materials. Such a formulation shows potential as an efficient controlled drug delivery system.
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